We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...
Abstract. Ontology evolution tools often propose new ontological changes in the form of statements. While different methods exist to check the quality of such statements to be add...
Fouad Zablith, Mathieu d'Aquin, Marta Sabou, Enric...
Abstract—This paper identifies the possibility of using electronic compasses and accelerometers in mobile phones, as a simple and scalable method of localization without war-dri...
Ionut Constandache, Romit Roy Choudhury, Injong Rh...
Taxonomy construction is a resource-demanding, top down, and time consuming effort. It does not always cater for the prevailing context of the captured information. This paper pro...
Eric Tsui, W. M. Wang, Chi Fai Cheung, Adela S. M....
SIFT is one of the most popular algorithms to extract points of interest from images. It is a scale+rotation invariant method. As a consequence, if one compares points of interest ...